[INFO] cloning repository https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanshy53%2FICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanshy53%2FICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 8f8d0cfb7743945eabc22d6150d20a11b351430a [INFO] checking Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM/8f8d0cfb7743945eabc22d6150d20a11b351430a against master#2ca7bcd03b87b52f7055a59b817443b0ac4a530d for pr-150322 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShreyanshy53%2FICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. 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[INFO] started tweaking git repo https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM [INFO] finished tweaking git repo https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM [INFO] tweaked toml for git repo https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM on toolchain 2ca7bcd03b87b52f7055a59b817443b0ac4a530d [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2ca7bcd03b87b52f7055a59b817443b0ac4a530d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/Shreyanshy53/ICP_SCHOLAR_DECENTRALIZED_EDUCTAION_PLATFORM already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2ca7bcd03b87b52f7055a59b817443b0ac4a530d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ic-cdk v0.12.3 [INFO] [stderr] Downloaded ic-stable-structures v0.6.9 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+2ca7bcd03b87b52f7055a59b817443b0ac4a530d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 4e240e339d2f1d305c3c69dfa05e3fb78695751f3b1d71dafb5ec40ae3563482 [INFO] running `Command { std: "docker" "start" "-a" "4e240e339d2f1d305c3c69dfa05e3fb78695751f3b1d71dafb5ec40ae3563482", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "4e240e339d2f1d305c3c69dfa05e3fb78695751f3b1d71dafb5ec40ae3563482", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4e240e339d2f1d305c3c69dfa05e3fb78695751f3b1d71dafb5ec40ae3563482", kill_on_drop: false }` [INFO] [stdout] 4e240e339d2f1d305c3c69dfa05e3fb78695751f3b1d71dafb5ec40ae3563482 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+2ca7bcd03b87b52f7055a59b817443b0ac4a530d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] cc2792f71a0dbee18abff327a6265bf0b88605d87d5bfe05bff5e43983c27346 [INFO] running `Command { std: "docker" "start" "-a" "cc2792f71a0dbee18abff327a6265bf0b88605d87d5bfe05bff5e43983c27346", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] | [INFO] [stderr] = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling psm v0.1.26 [INFO] [stderr] Compiling stacker v0.1.21 [INFO] [stderr] Compiling candid_derive v0.6.6 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Checking ic_principal v0.1.1 [INFO] [stderr] Checking ic0 v0.21.1 [INFO] [stderr] Checking ic-stable-structures v0.6.9 [INFO] [stderr] Checking futures-util v0.3.31 [INFO] [stderr] Checking futures-executor v0.3.31 [INFO] [stderr] Checking futures v0.3.31 [INFO] [stderr] Compiling serde_tokenstream v0.1.7 [INFO] [stderr] Compiling binread_derive v2.1.0 [INFO] [stderr] Compiling binread v2.2.0 [INFO] [stderr] Checking candid v0.10.14 [INFO] [stderr] Compiling ic-cdk-macros v0.8.4 [INFO] [stderr] Checking ic-cdk v0.12.3 [INFO] [stderr] Checking ic-cdk-timers v0.6.0 [INFO] [stderr] Checking token_canister v0.1.0 (/opt/rustwide/workdir/backend/token_canister) [INFO] [stderr] Checking student_canister v0.1.0 (/opt/rustwide/workdir/backend/student_canister) [INFO] [stderr] Checking peer_canister v0.1.0 (/opt/rustwide/workdir/backend/peer_canister) [INFO] [stderr] Checking course_canister v0.1.0 (/opt/rustwide/workdir/backend/course_canister) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/peer_canister/src/lib.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 53 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/peer_canister/src/lib.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 68 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 55 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:70:17 [INFO] [stdout] | [INFO] [stdout] 70 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 70 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:85:17 [INFO] [stdout] | [INFO] [stdout] 85 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 85 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/course_canister/src/lib.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/course_canister/src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 62 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:55:17 [INFO] [stdout] | [INFO] [stdout] 55 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 55 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:70:17 [INFO] [stdout] | [INFO] [stdout] 70 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 70 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/student_canister/src/lib.rs:85:17 [INFO] [stdout] | [INFO] [stdout] 85 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 85 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/token_canister/src/lib.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/token_canister/src/lib.rs:64:17 [INFO] [stdout] | [INFO] [stdout] 64 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 64 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/token_canister/src/lib.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/token_canister/src/lib.rs:64:17 [INFO] [stdout] | [INFO] [stdout] 64 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 64 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/peer_canister/src/lib.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 53 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 53 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/peer_canister/src/lib.rs:68:17 [INFO] [stdout] | [INFO] [stdout] 68 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 68 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/course_canister/src/lib.rs:49:17 [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 49 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> backend/course_canister/src/lib.rs:62:17 [INFO] [stdout] | [INFO] [stdout] 62 | fn to_bytes(&self) -> Cow<[u8]> { [INFO] [stdout] | ^^^^^ ^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 62 | fn to_bytes(&self) -> Cow<'_, [u8]> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.82s [INFO] running `Command { std: "docker" "inspect" "cc2792f71a0dbee18abff327a6265bf0b88605d87d5bfe05bff5e43983c27346", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc2792f71a0dbee18abff327a6265bf0b88605d87d5bfe05bff5e43983c27346", kill_on_drop: false }` [INFO] [stdout] cc2792f71a0dbee18abff327a6265bf0b88605d87d5bfe05bff5e43983c27346